Coagulation is the process that is used to remove the contaminants from water by precipitation. Coagulants can be classified as organic coagulants and inorganic coagulants. The inorganic coagulants can be split into are iron based coagulants and aluminium based coagulants. Iron based coagulants are used in reducing the biological decomposition products at low pH. In the removal of arsenic from water, iron based coagulants are more effective than aluminium based coagulants because of their higher affinity towards arsenic. Iron based coagulants are used in sewage and waste water treatment, whereas the aluminium based coagulants are used in industrial waste water treatment. Some of the benefits of using iron based coagulants are they totally remove the suspended solids, enhance turbidity removal, better COD and BOD removal, enhanced colour removal and many more. The major problem with the usage of aluminium based coagulants is that they adversely affect the environment. This is one of the major reason for the shift of trend towards using iron based coagulants. Moreover, the iron based coagulants market is expected to witness a moderate single digit growth in the forecast period.
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The increasing concerns regarding the proper hygiene and use of safe water for drinking is a major factor for the increase in water treatment industry, thereby increasing the consumption of iron based coagulants. The strict government standards that must be adhered to before discharging the waste water from the industries can also be a major demand driving factor for the iron based coagulants market. The indirect drivers for the growth of iron based coagulants market can be increasing population and the increasing industrialization in the emerging economies. The competitive advantage over other coagulants is also a major driving factor for the global iron based coagulants market.
The stringent government regulations pertaining to the use of metals and chemicals in the waste water treatment can be one of the major restraining factor for the growth of iron based coagulant market. The availability of alternatives for the removal of contaminants from water can also prove to be a major constraint for the iron based coagulant market.